It's also working on treatments for diabetes, liver disease, bone and cartilage repair.

BBC: White House stem cell shift expected

New research findings, published in The New England Journal of Medicine this week, show that bone marrow transplants can help repair wounds and regenerate skin in EB patients.

CNN: A mother's plea: Heal my children's skin

Doctors in Birmingham have chosen to use a metal plate to repair her skull instead of that bone, which they say may have shrunk.

BBC: Malala Yousafzai

Rodriguez had surgery on Jan. 16 to repair a torn labrum and reshape a bone to alleviate an impingement.

WSJ: Yanks GM: Possible A-Rod could miss entire season

And only then will surgeons go in and repair the ACL and figure out if the MCL and bone break needs surgery.

CNN: Vonn's injury 'career-delayer,' not 'career ender'

For about a decade, scientists have experimented with the use of stem cells to try and repair the heart, mostly in animals and mostly using stem cells derived from bone marrow.

CNN: It's amazing what the human heart can do

Work by Dr. Gershon and others has shown that serotonin is necessary for the repair of cells in the liver and lungs, and plays a role in normal heart development and bone-mass accumulation.

WSJ: A Gut Check for Many Ailments